Renewable or loose leaf book



G. A. BENNETT AND Fe B. A. KIRSTEN. RENEWABLE 0R LOOSE LEAF BOOK.APPLICATlON FILED NOV. H1920.

1,406,16 Patented Feb.14, 1922.

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UNITED STATES PATENT orrlcs.

GEORGE LBENNETT, OI PRAHRAN', MELBOURNE, AND FREDERICK B- A. KIRSTEN, OF

' BL'LWYN, MELBOURNE, VICTORIA, AUSTRALIA.

RENEWABLE OR LOOSE LEAF BOOK.

To all whom it myconcem:

Be known that we, GEORGE ALFnEn I BENNE'rr, a subject of the King ofGreat Victoria, Commonwealth of-Australia, and

FREDERICK .BENJAMIN AnoLPH KIRSTEN, a subject of the King of GreatBritain and Ireland, and a resident of the postal district of Balwyn, asuburb of the city of Melbourne, in the county of Bourke, aforesaid,have invented certain new and useful Imrovements in Renewable or LooseLeaf ooks, of which the following is a specification.

This invention relates to books having renewable or interchangeableleaves and more particularly to sales books, pocket books and othercomparatively small books of that type. It will be evident from thefollowing description, however, that the invention is not by anymeanslimited to such comparatively small books but ma beapplied to otherbooks of various kin s and sizes.

The object of the invention is to provide an extnemely simple andinexpensive means for retaining the leaves of a book within its cover insuch a manner that they may be readily withdrawn and replaced or renewedas desired.

The invention is primarily applicable to books having single looseleaves adapted to be withdrawn and replaced independently of each other.I

But in order that this invention may be better understood reference willnow be made to the accompanying sheet ofdrawings which is to be .takenas part of this specification. and read herewith Figure 1 is aperspective view of a book cover having aleaf holder, in accordance withthe invention, attached thereto.

Figure 2 is a cross section.

I Figure 3 isva perspective View. of a block of single loose leavesretained together b adapted for use with the present invention.

Figure 4 shows in section a modified arrangement of the block of leavesand binding wire seen in FigureB.

Figure 5 is a section on line BB of Figure 3.

.Figure 6 is a cross section showing the Specification of LettersPatent.

Application filed November 11, 1920. Serial no. 423,390.

a metallic binding wire or tape and also block of loose leaves seen inFigures 3 and 4 retained within the leaf holder.

According to the invention the book cover 2 is attached to the rear of aleaf holder 3 preferably formed of spring metal of substantially -Ushape or C sha e in cross section as seen in Figure 2. he leaf holderthus forms a channel 4 having an open mouth 6 through which the leavesare passed lengthwise into or out of the holder. The sides of this mouthform opposite jaws between which the leaves are held. These oppositejaws may be provided with outturned edges 7, as seen in Figs- 1, 2 and6, which prevent cutting or wearing of the leaves when the latter arebeing introduced or withdrawn.

One end of the channel 4 may, if desired, be bridged by tongues 8'01entirely closed to prevent the leaves being pushed too far along theholder, whilst the other end is entirely open as at 9 to allow of theintroduc- Patented Feb. 14, 1922.

tion andremoval of the leaves as hereinafter end 9 of the holder may beflared or diverge towards the adjacent end of the holder as in dicatedat 11 to facilitate the introduction of the leaves.

The leaf holder 3 may be retained to the cover 2 by any suitable means,for instance by a retaining wire 12 which passes through holes in thecover and the back of the leaf holder respectively.

A block of single loose leaves 24 may be employed with the leaf holder.These leaves are interchangeably bound together by a metallic bindingtape or wire 26 passing through holes- 27 or niches 30 in the leaves.The ends of the tape 26, which may normally spring outwards as shown indottedlines in Figure 4 are turned down flat upon one of the outsideleaves when introduc'ed into the holder, as shown in full lines.

Such leaves are particularly useful for note books and the like andenable individual leaves to be withdrawn and replaced without tearingfrom the book. A blockof leaves of which prevent them It will be evidentthat the springy nature of the leaf holder enables it to accommodateitself to blocks of leaves of different thickness, as when leaves areremoved or added,

a the jaws at the sides-of the open mouth 6 ners; and a spring bindingtape having its central portion arranged against one face of the blockof leaves and its end portions inserted through said openings andprojecting beyond the opposite face of said block, the projecting partsof said end portions having a tendency to spring outwards away from eachother and from the block but being pressed inwards toward said blockconsequent upon the insertion of the block in the holder.

In testimony whereof We affix our signatures.

G. A. BENNETT. F. B. A. KIRSTEN. Witness:

VICTOR J. KELSON.

